/*
 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
 * Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
 *
 * == BEGIN LICENSE ==
 *
 * Licensed under the terms of any of the following licenses at your
 * choice:
 *
 *  - GNU General Public License Version 2 or later (the "GPL")
 *    http://www.gnu.org/licenses/gpl.html
 *
 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
 *    http://www.gnu.org/licenses/lgpl.html
 *
 *  - Mozilla Public License Version 1.1 or later (the "MPL")
 *    http://www.mozilla.org/MPL/MPL-1.1.html
 *
 * == END LICENSE ==
 *
 * Useful tools for XML.
 */

using System ;
using System.Globalization ;
using System.Xml ;

namespace FredCK.FCKeditorV2
{
	internal sealed class XmlUtil
	{
		private XmlUtil()
		{}

		public static XmlNode AppendElement( XmlNode node, string newElementName )
		{
			return AppendElement( node, newElementName, null ) ;
		}

		public static XmlNode AppendElement( XmlNode node, string newElementName, string innerValue )
		{
			XmlNode oNode ;

			if ( node is XmlDocument )
                oNode = node.AppendChild( ((XmlDocument)node).CreateElement( newElementName ) ) ;
			else
				oNode = node.AppendChild( node.OwnerDocument.CreateElement( newElementName ) ) ;

			if ( innerValue != null )
				oNode.AppendChild( node.OwnerDocument.CreateTextNode( innerValue ) ) ;

			return oNode ;
		}

		public static XmlAttribute CreateAttribute( XmlDocument xmlDocument, string name, string value )
		{
			XmlAttribute oAtt = xmlDocument.CreateAttribute( name ) ;
			oAtt.Value = value ;
			return oAtt ;
		}

		public static void SetAttribute( XmlNode node, string attributeName, string attributeValue )
		{
			if ( node.Attributes[ attributeName ] != null )
				node.Attributes[ attributeName ].Value = attributeValue ;
			else
				node.Attributes.Append( CreateAttribute( node.OwnerDocument, attributeName, attributeValue ) ) ;
		}
	}
}